Strained alkyne polymers capable of SPAAC via ring-opening metathesis polymerization,Polymer Chemistry

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Strained alkyne polymers capable of SPAAC via ring-opening metathesis polymerization
Polymer Chemistry ( IF 4.1 ) Pub Date : 2021-09-16 , DOI: 10.1039/d1py01177d
Rajeshwar Vasdev ₁ , Wilson Luo ₁ , Kyle Classen ₁ , Michael Anghel ₁ , Samantha Novoa ₁ , Mark S. Workentin ₁ , Joe B. Gilroy ₁

Affiliation

The incorporation of strained alkynes into polymers is generally achieved by employing step-growth polymerization methods or post-polymerization reactions. Here, we demonstrate that cyclopropenone-masked strained alkynes are tolerant to chain-growth ring-opening metathesis polymerization, and that, upon post-polymerization photochemical demasking with loss of CO, the strained alkyne group appended to each repeating unit can be used to prepare functional (e.g., fluorescent or redox-active) polymers from a common polymer backbone. We support our claims about polymer transformations throughout the manuscript through the inclusion of a complete set of model reactions and characterization data for analogous molecular species. The findings of this study are transferable to other polymeric systems, opening the door to the creation of libraries of multifunctional chain-growth polymers with identical polymer backbones.

中文翻译：

能够通过开环复分解聚合进行 SPAAC 的应变炔聚合物

将应变炔引入聚合物通常是通过采用逐步增长聚合方法或后聚合反应来实现的。在这里，我们证明了环丙烯酮掩蔽的应变炔能够耐受链增长开环复分解聚合，并且在失去 CO 的聚合后光化学去掩蔽后，附加到每个重复单元的应变炔可用于制备功能性的（例如，荧光或氧化还原活性）聚合物来自共同的聚合物骨架。我们通过包含一套完整的模型反应和类似分子种类的表征数据来支持我们在整个手稿中关于聚合物转化的主张。这项研究的结果可转移到其他聚合物系统，为创建具有相同聚合物主链的多功能链增长聚合物库打开了大门。

更新日期：2021-09-16

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